GB2477685A - Wavefront sensing method & apparatus - Google Patents
Wavefront sensing method & apparatus Download PDFInfo
- Publication number
- GB2477685A GB2477685A GB1108884A GB201108884A GB2477685A GB 2477685 A GB2477685 A GB 2477685A GB 1108884 A GB1108884 A GB 1108884A GB 201108884 A GB201108884 A GB 201108884A GB 2477685 A GB2477685 A GB 2477685A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wavefront
- bundle
- phase
- piston
- phases
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000012512 characterization method Methods 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
- G01J9/04—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by beating two waves of a same source but of different frequency and measuring the phase shift of the lower frequency obtained
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
- G01J9/02—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
- G01J2009/002—Wavefront phase distribution
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
- G01J9/02—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods
- G01J2009/0203—Phased array of beams
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
- G01J9/02—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods
- G01J2009/0226—Fibres
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Optical Transform (AREA)
Abstract
Wavefront sensing apparatus comprises a beam splitter (106) for combining a wavefront to he characterised (105) with a frequency-shifted plane wavefront (111) and a bundle of optical fibres (112) arranged to detect the combined beam at a plurality of positions across the combined beam. Output from individual fibres of the bundle are detected to produce corresponding heterodyne signals, the phases of which are extracted by demodulation. By fitting the extracted phases to an assumed functional form for the phase of the wavefront to be characterised, the piston, tip, tilt and radius of curvature phase parameters of the wave-front to be characterised may be found at the position of the fibre bundle. In contrast, prior art methods of wavefront characterisation only allow the piston phase of the wavefront to be characterised to be obtained.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0822247.3A GB0822247D0 (en) | 2008-12-05 | 2008-12-05 | Wavefront sensing method and apparatus |
PCT/GB2009/002826 WO2010064022A1 (en) | 2008-12-05 | 2009-12-04 | Wavefront sensing method & apparatus |
Publications (3)
Publication Number | Publication Date |
---|---|
GB201108884D0 GB201108884D0 (en) | 2011-07-13 |
GB2477685A true GB2477685A (en) | 2011-08-10 |
GB2477685B GB2477685B (en) | 2013-10-23 |
Family
ID=40289566
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB0822247.3A Ceased GB0822247D0 (en) | 2008-12-05 | 2008-12-05 | Wavefront sensing method and apparatus |
GB1108884.6A Active GB2477685B (en) | 2008-12-05 | 2009-12-04 | Wavefront sensing method & apparatus |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB0822247.3A Ceased GB0822247D0 (en) | 2008-12-05 | 2008-12-05 | Wavefront sensing method and apparatus |
Country Status (3)
Country | Link |
---|---|
US (1) | US20110235049A1 (en) |
GB (2) | GB0822247D0 (en) |
WO (1) | WO2010064022A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2976663B1 (en) * | 2011-06-14 | 2013-07-19 | Commissariat Energie Atomique | DEVICE AND METHOD FOR CHARACTERIZING A LIGHT BEAM. |
US8792099B1 (en) * | 2011-12-21 | 2014-07-29 | Hrl Laboratories, Llc | Method and apparatus for phase detection in a beam steering laser array |
US8792526B2 (en) | 2012-05-24 | 2014-07-29 | Northrop Grumman Systems Corporation | Coherent laser array control system and method |
US9496296B1 (en) * | 2013-12-20 | 2016-11-15 | Rockwell Collins, Inc. | Optically-tuned electronic components |
US9941661B1 (en) | 2015-01-14 | 2018-04-10 | Hrl Laboratories, Llc | System for maintaining the locking range of an injection locked laser array within range of the frequency of a master laser |
US9945731B1 (en) | 2015-01-14 | 2018-04-17 | Hrl Laboratories, Llc | Optical detector for measuring respective phases of multiple beams apparatus and method |
WO2016125207A1 (en) * | 2015-02-06 | 2016-08-11 | オリンパス株式会社 | Optical fiber scanner and scanning endoscope device |
WO2018122916A1 (en) * | 2016-12-26 | 2018-07-05 | オリンパス株式会社 | Optical fiber scanning device and endoscope |
EP3486624A1 (en) | 2017-11-21 | 2019-05-22 | Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO | Wavefront detector |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4387966A (en) * | 1980-07-09 | 1983-06-14 | Rockwell International Corporation | Wide bandwidth optical modal deformation sensor |
EP1041686A2 (en) * | 1999-04-01 | 2000-10-04 | TRW Inc. | Improved high average power fiber laser system with high-speed, parallel wavefront sensor |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4141652A (en) * | 1977-11-25 | 1979-02-27 | Adaptive Optics Associates, Inc. | Sensor system for detecting wavefront distortion in a return beam of light |
US4399356A (en) * | 1981-01-19 | 1983-08-16 | Adaptive Optics Associates, Inc. | Optical wavefront sensing system |
US4737621A (en) * | 1985-12-06 | 1988-04-12 | Adaptive Optics Assoc., Inc. | Integrated adaptive optical wavefront sensing and compensating system |
IL130904A (en) * | 1998-08-11 | 2004-07-25 | Trw Inc | High average power fiber laser system with phase front control |
US6229616B1 (en) * | 1999-04-01 | 2001-05-08 | Trw Inc. | Heterodyne wavefront sensor |
US6147755A (en) * | 1999-04-01 | 2000-11-14 | Trw Inc. | Dynamic optical phase state detector |
DE10121516A1 (en) * | 2001-05-03 | 2002-11-07 | Michael Kuechel | Illuminating apparatus for an object under test in an interferometer with an optical axis (OA) has radiation director directing radiation at object from different locations distant from axis |
US6891987B2 (en) * | 2002-04-24 | 2005-05-10 | Hrl Laboratories, Llc | Multi-aperture beam steering system with wavefront correction based on a tunable optical delay line |
GB0328904D0 (en) * | 2003-12-12 | 2004-01-14 | Swan Thomas & Co Ltd | Scarab |
US20050243275A1 (en) * | 2004-04-30 | 2005-11-03 | Curatu Eugene O | Wavefront sensor and relay for optical measurement and associated methods |
US7445335B2 (en) * | 2006-01-20 | 2008-11-04 | Clarity Medical Systems, Inc. | Sequential wavefront sensor |
-
2008
- 2008-12-05 GB GBGB0822247.3A patent/GB0822247D0/en not_active Ceased
-
2009
- 2009-12-04 US US13/131,252 patent/US20110235049A1/en not_active Abandoned
- 2009-12-04 WO PCT/GB2009/002826 patent/WO2010064022A1/en active Application Filing
- 2009-12-04 GB GB1108884.6A patent/GB2477685B/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4387966A (en) * | 1980-07-09 | 1983-06-14 | Rockwell International Corporation | Wide bandwidth optical modal deformation sensor |
EP1041686A2 (en) * | 1999-04-01 | 2000-10-04 | TRW Inc. | Improved high average power fiber laser system with high-speed, parallel wavefront sensor |
Also Published As
Publication number | Publication date |
---|---|
GB0822247D0 (en) | 2009-01-14 |
GB2477685B (en) | 2013-10-23 |
WO2010064022A1 (en) | 2010-06-10 |
GB201108884D0 (en) | 2011-07-13 |
US20110235049A1 (en) | 2011-09-29 |
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